/**
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.felix.fileinstall;

import java.net.URL;

/**
 * Objects implementing this interface are able to convert certain
 * kind of artifacts to OSGi bundles on the fly through an URL handler.
 *
 * This kind of artifact listener should be favored over the {@link ArtifactTransformer}
 * because it allows the use of the OSGi update feature on bundles.
 */
public interface ArtifactUrlTransformer extends ArtifactListener
{

    /**
     * Process the given file (canHandle returned true previously)
     * Can return <null> or a pointer to a transformed file.
     */
     URL transform(URL artifact) throws Exception;

}